[dpdk-dev] [PATCH v7 3/8] ixgbe: support ieee1588 functions for device time
Pablo de Lara
pablo.de.lara.guarch at intel.com
Fri Nov 13 17:09:09 CET 2015
From: Daniel Mrzyglod <danielx.t.mrzyglod at intel.com>
Add additional functions to support the existing IEEE1588
functionality and to enable getting, setting and adjusting
the device time.
Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod at intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
Reviewed-by: John McNamara <john.mcnamara at intel.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 244 +++++++++++++++++++++++++++++++++++----
drivers/net/ixgbe/ixgbe_ethdev.h | 4 +
2 files changed, 227 insertions(+), 21 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 19ddb52..80801f0 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -126,10 +126,17 @@
#define IXGBE_HKEY_MAX_INDEX 10
/* Additional timesync values. */
-#define IXGBE_TIMINCA_16NS_SHIFT 24
-#define IXGBE_TIMINCA_INCVALUE 16000000
-#define IXGBE_TIMINCA_INIT ((0x02 << IXGBE_TIMINCA_16NS_SHIFT) \
- | IXGBE_TIMINCA_INCVALUE)
+#define NSEC_PER_SEC 1000000000L
+#define IXGBE_INCVAL_10GB 0x66666666
+#define IXGBE_INCVAL_1GB 0x40000000
+#define IXGBE_INCVAL_100 0x50000000
+#define IXGBE_INCVAL_SHIFT_10GB 28
+#define IXGBE_INCVAL_SHIFT_1GB 24
+#define IXGBE_INCVAL_SHIFT_100 21
+#define IXGBE_INCVAL_SHIFT_82599 7
+#define IXGBE_INCPER_SHIFT_82599 24
+
+#define IXGBE_CYCLECOUNTER_MASK 0xffffffffffffffff
static int eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev);
static int eth_ixgbe_dev_uninit(struct rte_eth_dev *eth_dev);
@@ -325,6 +332,11 @@ static int ixgbe_timesync_read_rx_timestamp(struct rte_eth_dev *dev,
uint32_t flags);
static int ixgbe_timesync_read_tx_timestamp(struct rte_eth_dev *dev,
struct timespec *timestamp);
+static int ixgbe_timesync_adjust_time(struct rte_eth_dev *dev, int64_t delta);
+static int ixgbe_timesync_read_time(struct rte_eth_dev *dev,
+ struct timespec *timestamp);
+static int ixgbe_timesync_write_time(struct rte_eth_dev *dev,
+ const struct timespec *timestamp);
/*
* Define VF Stats MACRO for Non "cleared on read" register
@@ -480,6 +492,9 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = {
.get_eeprom = ixgbe_get_eeprom,
.set_eeprom = ixgbe_set_eeprom,
.get_dcb_info = ixgbe_dev_get_dcb_info,
+ .timesync_adjust_time = ixgbe_timesync_adjust_time,
+ .timesync_read_time = ixgbe_timesync_read_time,
+ .timesync_write_time = ixgbe_timesync_write_time,
};
/*
@@ -5582,6 +5597,186 @@ ixgbe_dev_set_mc_addr_list(struct rte_eth_dev *dev,
ixgbe_dev_addr_list_itr, TRUE);
}
+static uint64_t
+ixgbe_read_systime_cyclecounter(struct rte_eth_dev *dev)
+{
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint64_t systime_cycles;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_X550:
+ /* SYSTIMEL stores ns and SYSTIMEH stores seconds. */
+ systime_cycles = (uint64_t)IXGBE_READ_REG(hw, IXGBE_SYSTIML);
+ systime_cycles += (uint64_t)IXGBE_READ_REG(hw, IXGBE_SYSTIMH)
+ * NSEC_PER_SEC;
+ break;
+ default:
+ systime_cycles = (uint64_t)IXGBE_READ_REG(hw, IXGBE_SYSTIML);
+ systime_cycles |= (uint64_t)IXGBE_READ_REG(hw, IXGBE_SYSTIMH)
+ << 32;
+ }
+
+ return systime_cycles;
+}
+
+static uint64_t
+ixgbe_read_rx_tstamp_cyclecounter(struct rte_eth_dev *dev)
+{
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint64_t rx_tstamp_cycles;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_X550:
+ /* RXSTMPL stores ns and RXSTMPH stores seconds. */
+ rx_tstamp_cycles = (uint64_t)IXGBE_READ_REG(hw, IXGBE_RXSTMPL);
+ rx_tstamp_cycles += (uint64_t)IXGBE_READ_REG(hw, IXGBE_RXSTMPH)
+ * NSEC_PER_SEC;
+ break;
+ default:
+ /* RXSTMPL stores ns and RXSTMPH stores seconds. */
+ rx_tstamp_cycles = (uint64_t)IXGBE_READ_REG(hw, IXGBE_RXSTMPL);
+ rx_tstamp_cycles |= (uint64_t)IXGBE_READ_REG(hw, IXGBE_RXSTMPH)
+ << 32;
+ }
+
+ return rx_tstamp_cycles;
+}
+
+static uint64_t
+ixgbe_read_tx_tstamp_cyclecounter(struct rte_eth_dev *dev)
+{
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint64_t tx_tstamp_cycles;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_X550:
+ /* TXSTMPL stores ns and TXSTMPH stores seconds. */
+ tx_tstamp_cycles = (uint64_t)IXGBE_READ_REG(hw, IXGBE_TXSTMPL);
+ tx_tstamp_cycles += (uint64_t)IXGBE_READ_REG(hw, IXGBE_TXSTMPH)
+ * NSEC_PER_SEC;
+ break;
+ default:
+ /* TXSTMPL stores ns and TXSTMPH stores seconds. */
+ tx_tstamp_cycles = (uint64_t)IXGBE_READ_REG(hw, IXGBE_TXSTMPL);
+ tx_tstamp_cycles |= (uint64_t)IXGBE_READ_REG(hw, IXGBE_TXSTMPH)
+ << 32;
+ }
+
+ return tx_tstamp_cycles;
+}
+
+static void
+ixgbe_start_timecounters(struct rte_eth_dev *dev)
+{
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
+ struct rte_eth_link link;
+ uint32_t incval = 0;
+ uint32_t shift = 0;
+
+ /* Get current link speed. */
+ memset(&link, 0, sizeof(link));
+ ixgbe_dev_link_update(dev, 1);
+ rte_ixgbe_dev_atomic_read_link_status(dev, &link);
+
+ switch (link.link_speed) {
+ case ETH_LINK_SPEED_100:
+ incval = IXGBE_INCVAL_100;
+ shift = IXGBE_INCVAL_SHIFT_100;
+ break;
+ case ETH_LINK_SPEED_1000:
+ incval = IXGBE_INCVAL_1GB;
+ shift = IXGBE_INCVAL_SHIFT_1GB;
+ break;
+ case ETH_LINK_SPEED_10000:
+ default:
+ incval = IXGBE_INCVAL_10GB;
+ shift = IXGBE_INCVAL_SHIFT_10GB;
+ break;
+ }
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_X550:
+ /* Independent of link speed. */
+ incval = 1;
+ /* Cycles read will be interpreted as ns. */
+ shift = 0;
+ /* Fall-through */
+ case ixgbe_mac_X540:
+ IXGBE_WRITE_REG(hw, IXGBE_TIMINCA, incval);
+ break;
+ case ixgbe_mac_82599EB:
+ incval >>= IXGBE_INCVAL_SHIFT_82599;
+ shift -= IXGBE_INCVAL_SHIFT_82599;
+ IXGBE_WRITE_REG(hw, IXGBE_TIMINCA,
+ (1 << IXGBE_INCPER_SHIFT_82599) | incval);
+ break;
+ default:
+ /* Not supported. */
+ return;
+ }
+
+ memset(&adapter->systime_tc, 0, sizeof(struct rte_timecounter));
+ memset(&adapter->rx_tstamp_tc, 0, sizeof(struct rte_timecounter));
+ memset(&adapter->tx_tstamp_tc, 0, sizeof(struct rte_timecounter));
+
+ adapter->systime_tc.cc_mask = IXGBE_CYCLECOUNTER_MASK;
+ adapter->systime_tc.cc_shift = shift;
+ adapter->systime_tc.nsec_mask = (1ULL << shift) - 1;
+
+ adapter->rx_tstamp_tc.cc_mask = IXGBE_CYCLECOUNTER_MASK;
+ adapter->rx_tstamp_tc.cc_shift = shift;
+ adapter->rx_tstamp_tc.nsec_mask = (1ULL << shift) - 1;
+
+ adapter->tx_tstamp_tc.cc_mask = IXGBE_CYCLECOUNTER_MASK;
+ adapter->tx_tstamp_tc.cc_shift = shift;
+ adapter->tx_tstamp_tc.nsec_mask = (1ULL << shift) - 1;
+}
+
+static int
+ixgbe_timesync_adjust_time(struct rte_eth_dev *dev, int64_t delta)
+{
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
+
+ adapter->systime_tc.nsec += delta;
+ adapter->rx_tstamp_tc.nsec += delta;
+ adapter->tx_tstamp_tc.nsec += delta;
+
+ return 0;
+}
+
+static int
+ixgbe_timesync_write_time(struct rte_eth_dev *dev, const struct timespec *ts)
+{
+ uint64_t ns;
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
+
+ ns = rte_timespec_to_ns(ts);
+ /* Set the timecounters to a new value. */
+ adapter->systime_tc.nsec = ns;
+ adapter->rx_tstamp_tc.nsec = ns;
+ adapter->tx_tstamp_tc.nsec = ns;
+
+ return 0;
+}
+
+static int
+ixgbe_timesync_read_time(struct rte_eth_dev *dev, struct timespec *ts)
+{
+ uint64_t ns, systime_cycles;
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
+
+ systime_cycles = ixgbe_read_systime_cyclecounter(dev);
+ ns = rte_timecounter_update(&adapter->systime_tc, systime_cycles);
+ *ts = rte_ns_to_timespec(ns);
+
+ return 0;
+}
+
static int
ixgbe_timesync_enable(struct rte_eth_dev *dev)
{
@@ -5589,13 +5784,18 @@ ixgbe_timesync_enable(struct rte_eth_dev *dev)
uint32_t tsync_ctl;
uint32_t tsauxc;
+ /* Stop the timesync system time. */
+ IXGBE_WRITE_REG(hw, IXGBE_TIMINCA, 0x0);
+ /* Reset the timesync system time value. */
+ IXGBE_WRITE_REG(hw, IXGBE_SYSTIML, 0x0);
+ IXGBE_WRITE_REG(hw, IXGBE_SYSTIMH, 0x0);
+
/* Enable system time for platforms where it isn't on by default. */
tsauxc = IXGBE_READ_REG(hw, IXGBE_TSAUXC);
tsauxc &= ~IXGBE_TSAUXC_DISABLE_SYSTIME;
IXGBE_WRITE_REG(hw, IXGBE_TSAUXC, tsauxc);
- /* Start incrementing the register used to timestamp PTP packets. */
- IXGBE_WRITE_REG(hw, IXGBE_TIMINCA, IXGBE_TIMINCA_INIT);
+ ixgbe_start_timecounters(dev);
/* Enable L2 filtering of IEEE1588/802.1AS Ethernet frame types. */
IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_1588),
@@ -5613,6 +5813,8 @@ ixgbe_timesync_enable(struct rte_eth_dev *dev)
tsync_ctl |= IXGBE_TSYNCTXCTL_ENABLED;
IXGBE_WRITE_REG(hw, IXGBE_TSYNCTXCTL, tsync_ctl);
+ IXGBE_WRITE_FLUSH(hw);
+
return 0;
}
@@ -5647,19 +5849,19 @@ ixgbe_timesync_read_rx_timestamp(struct rte_eth_dev *dev,
uint32_t flags __rte_unused)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
uint32_t tsync_rxctl;
- uint32_t rx_stmpl;
- uint32_t rx_stmph;
+ uint64_t rx_tstamp_cycles;
+ uint64_t ns;
tsync_rxctl = IXGBE_READ_REG(hw, IXGBE_TSYNCRXCTL);
if ((tsync_rxctl & IXGBE_TSYNCRXCTL_VALID) == 0)
return -EINVAL;
- rx_stmpl = IXGBE_READ_REG(hw, IXGBE_RXSTMPL);
- rx_stmph = IXGBE_READ_REG(hw, IXGBE_RXSTMPH);
-
- timestamp->tv_sec = (uint64_t)(((uint64_t)rx_stmph << 32) | rx_stmpl);
- timestamp->tv_nsec = 0;
+ rx_tstamp_cycles = ixgbe_read_rx_tstamp_cyclecounter(dev);
+ ns = rte_timecounter_update(&adapter->rx_tstamp_tc, rx_tstamp_cycles);
+ *timestamp = rte_ns_to_timespec(ns);
return 0;
}
@@ -5669,21 +5871,21 @@ ixgbe_timesync_read_tx_timestamp(struct rte_eth_dev *dev,
struct timespec *timestamp)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct ixgbe_adapter *adapter =
+ (struct ixgbe_adapter *)dev->data->dev_private;
uint32_t tsync_txctl;
- uint32_t tx_stmpl;
- uint32_t tx_stmph;
+ uint64_t tx_tstamp_cycles;
+ uint64_t ns;
tsync_txctl = IXGBE_READ_REG(hw, IXGBE_TSYNCTXCTL);
if ((tsync_txctl & IXGBE_TSYNCTXCTL_VALID) == 0)
return -EINVAL;
- tx_stmpl = IXGBE_READ_REG(hw, IXGBE_TXSTMPL);
- tx_stmph = IXGBE_READ_REG(hw, IXGBE_TXSTMPH);
+ tx_tstamp_cycles = ixgbe_read_tx_tstamp_cyclecounter(dev);
+ ns = rte_timecounter_update(&adapter->tx_tstamp_tc, tx_tstamp_cycles);
+ *timestamp = rte_ns_to_timespec(ns);
- timestamp->tv_sec = (uint64_t)(((uint64_t)tx_stmph << 32) | tx_stmpl);
- timestamp->tv_nsec = 0;
-
- return 0;
+ return 0;
}
static int
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h
index 1856c42..d26771a 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.h
+++ b/drivers/net/ixgbe/ixgbe_ethdev.h
@@ -37,6 +37,7 @@
#include "base/ixgbe_dcb_82599.h"
#include "base/ixgbe_dcb_82598.h"
#include "ixgbe_bypass.h"
+#include <rte_time.h>
/* need update link, bit flag */
#define IXGBE_FLAG_NEED_LINK_UPDATE (uint32_t)(1 << 0)
@@ -282,6 +283,9 @@ struct ixgbe_adapter {
bool rx_bulk_alloc_allowed;
bool rx_vec_allowed;
+ struct rte_timecounter systime_tc;
+ struct rte_timecounter rx_tstamp_tc;
+ struct rte_timecounter tx_tstamp_tc;
};
#define IXGBE_DEV_PRIVATE_TO_HW(adapter)\
--
2.5.0
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